Snow guard



FIG. 1 is a perspective view of the snow guard showing my new design;

FIG. 2 is a front elevational view of the snow guard;

FIG. 3 is a bottom plan view of the snow guard;

FIG. 4 is a rear elevational view of the snow guard;

FIG. 5 is a top plan view of the snow guard;

FIG. 6 is a right-side elevational view of the snow guard; and,

FIG. 7 is a left-side elevational view of the snow guard.

The dashed portions shown in the drawing do not form part of the claimed design. 

The ornamental design for a snow guard, as shown and described. 